(11) باب شُهُودِ الْمَلاَئِكَةِ بَدْرًا
Narrated Rifaa:
(who was one of the Badr warriors) Gabriel came to the Prophet (ﷺ) and said, "How do you look upon the warriors of Badr among yourselves?" The Prophet (ﷺ) said, "As the best of the Muslims." or said a similar statement. On that, Gabriel said, "And so are the Angels who participated in the Badr (battle).
Reference: Sahih al-Bukhari 3992
In-book reference: Book 64, Hadith 43
USC-MSA web (English) reference(deprecated numbering scheme): Vol. 5, Book 59, Hadith 327